Eg.31 Coronary artery bypass surgery considerably prolongs the lives of patients with significant obstructive coronary artery disease, as is evidenced by recently calculated five-year survival rates.

• 冠状动脉旁路手术能在相当大的程度上延长冠状动脉明显阻塞的患者的寿命，这一点已由最近统计的五年存活率得到证明。